Improvement in steam-operated water-ejectors



UNITED 'STn'rns Parana OFFICE HUGH COLL, OF MILLVILLE BOROUGH, PENNSYLVANIA.

IMPROVEMENT IN` STEAiVI-OPERATED WATEREJECTCRS.

Specitication forming part of Letters Patent No. 90,930, dated June 8, 1869.

To all lwhom it may concern:

Be it known that I, HUGH COLL, of Millville Borough, in the county. of Allegheny, and State of Pennsylvania, have invented a new and useful Improvement in Siphon- Pumps; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawing, making a part ot' this specication, in which- Figure 1 is a side elevation of my improvement, and Fig. 2 is a sectional view of the same.

Like letters of reference indicate like parts in each.

The nature of my invention consists in the construction of a steam Siphon-pump, or waterelevator, having outer and inner pear-shaped hollow heads, so that a jet or current of steam shall elevate water, and discharge it through and from either or both the heads, as hereinafter described. v

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and mode of operation.

a is an outer pear-shaped head or globe, cast hollow, and tapering down at one end into an outer discharge-pipe, b.

c is a steam-injection pipe screwed into and which is cast on the other or rear end of the head a; thence it passes along at or near the middle of the chamber of the head a to any desirable distance, provided its forward or discharging end does not extend beyond the mouth of the inner discharge-pipe e. c is an inner head or globe, also cast hollow and pear-shaped, having one end tapered down to the form of a pipe or tube, which forms an inner discharge-pipe, c. At its rear or opposite end it is screwed onto the injection-pipe be, if so desired, screwed onto the injectionpipe c, outside of the threaded neck d, to

fasten it securely in position. m, is a nozzle of any suitable construction placed on the dis charging end of the injection-pipe c.

The mode ot' operation of my improved steam Siphon-pump is as follows:

The steam, passing. through the injectionpipe c, rushes out ot the narrowed end or nozzle m with great velocity into the inner discharge-pipe e', and thence into and through the outer discharge-pipeb.

The force with whlch the steam passes into and through the discharge-pipes rarees or exhausts the air in them, which tends to produce avacuum in the heads or globes a e, which vacuum is immediately filled by the water coming up the induction-pipe g, and as the air is also expelled from the dischargepipes b c', the water following to till up the vacuum thus formed is caught by the flow of steam, and is forced out of the dischargetubes b e', and a regular current is established, which is kept up by the continuous pressure of the steam.

The advantage of the holes or openings s s is that the resistance of the air at the discharging end c of the injection-pipe is equalized by the pressure of the air, through the holes s s, behind the nozzle m, and in consequence of which a regular current is sooner established. Also, as the inner discharge-tube c' is much smaller than outer discharge-tube b, the steam from the jet m rushes through it into the outer disc-harge-tube b vwith but slightly-diminished force, its force having been preserved by the narrowness of the inner discharge-tube a', while at the same time it expels from the inner discharge-tube c', through the outer discharge-tube b, the water that enters the holes s s, with great force, causing a very rapid current through the outer discharge-tube b, which draws along with it the water in the outer head a.

The old kind of Siphon-pumps, having but one head, can only be used by placing the discharging end c of the injection-pipe threequarters way across the induction-openingf, and even then it requires a much greater head of steam than is necessary in my improved siphon, for the steam, coming in contact with such a large body of water as is in the single head of the old siphon, is sooner condensed, and so loses its power.

In my improved siphon only about one'half the amount of steam is required.

'Ihe end or nozzle m of the injeotion-pipev c may be placed anywhere along inside the inner head e, provided it does not go beyond the limits of the outer head a, and the inner` `head may be movedalon g the injection-pipe o,

-pipe e', the Water being slightly warmed by the last method. v

The nozzle m may be made by drawing down the end of the injection-pipe c.

The desired amount of steam may be admitted by reducing or enlarging the nozzle m.

This Siphon-pump may be made of iron, or any other suitable material.

The heads are generally cast of iron.

What I claim as my invention, and desire to secure by Letters Patent, is-

'Ihe combination of the pear-shaped heads a and e with the injection-pipe c, arranged substantially as and for the purposes hereinbefore set forth.

In testimony whereof, I, the said HUGH GoLL, have hereunto set my hand.

HUGH COLL. Witnesses:

J oEN GLENN, THos. B. KEER. 

